$ git clone -n https://src.fedoraproject.org/rpms/rust-jwt.git /var/lib/mock/f45-build-42733-796/root/chroot_tmpdir/scmroot/rust-jwt
Cloning into '/var/lib/mock/f45-build-42733-796/root/chroot_tmpdir/scmroot/rust-jwt'...
$ git fetch origin 8b12ae2e9674f8544704a17bb811ccc74dd03981:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-jwt
 * [new ref]         8b12ae2e9674f8544704a17bb811ccc74dd03981 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b12ae2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild